EP0870145B1 - Tuyau en beton, en gres-cerame ou en fonte - Google Patents

Tuyau en beton, en gres-cerame ou en fonte Download PDF

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Publication number
EP0870145B1
EP0870145B1 EP96944070A EP96944070A EP0870145B1 EP 0870145 B1 EP0870145 B1 EP 0870145B1 EP 96944070 A EP96944070 A EP 96944070A EP 96944070 A EP96944070 A EP 96944070A EP 0870145 B1 EP0870145 B1 EP 0870145B1
Authority
EP
European Patent Office
Prior art keywords
pipe
pipe joint
seal
test
leak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96944070A
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German (de)
English (en)
Other versions
EP0870145A1 (fr
Inventor
Thomas Lammering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RG ROHRGRUPPE GMBH & CO. KG
Original Assignee
Rg Rohrgruppe & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rg Rohrgruppe & Co KG GmbH filed Critical Rg Rohrgruppe & Co KG GmbH
Publication of EP0870145A1 publication Critical patent/EP0870145A1/fr
Application granted granted Critical
Publication of EP0870145B1 publication Critical patent/EP0870145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks

Definitions

  • the invention relates to a pipe connection of a sewage pipe laid in the ground Concrete, stoneware or cast iron pipe with pipe end and pipe bell.
  • connection connections are referred to as socket connections and are e.g. from the EP 0677690 A1 known.
  • the known sleeve connection shows two sealing rings, the Gap between the sealing rings can be acted upon with sealant. to A tubular cavity is provided for supplying the sealant.
  • the object of the invention is to improve the known development.
  • the invention is based on the consideration that the space between the seal does not have to be the only sealing space.
  • an environmentally safe sewer pipe is included Concrete pipes created that allow the leakage to be recognized, the leakage point locate and seal. This ensures high quality environmental protection Precautions against the unwanted destruction of neighboring lines and cables due to of the mostly incomplete line inventory plans.
  • Figures 1 to 3 show the longitudinal section through the wall of a connection of concrete pipes.
  • the outside of the tube is on the top and the inside is on the bottom.
  • Figure 1 shows a device for sealing pipe connections and fittings as well as for the conveyance and directed distribution of grouting material in the sealing surfaces and in the surrounding ground.
  • This consists of an activatable hose seal 3, preferably fastened on the pipe tip end 1, and a non-activatable mechanical seal 4, preferably located in the pipe bell 2.
  • a circumferential test chamber 5 is formed by the two seals. The arrangement and shape of the two seals are designed so that the activatable hose seal 3 seals against infiltrating groundwater and stratified water and the non-activatable mechanical seal 4 is intended to prevent exfiltration of waste water from the interior of the sewer into the surrounding building ground.
  • the activatable hose seal 3 has one or more feeds for the re-sealing in the form that, via a coverable filling device 6 that is resistant to the aggressive conditions of the channel interior and does not impair the pipe cross-section, is suitable for coupling with a channel robot, a suitable pressing material with a defined minimum pressure above one Feed line or a feed channel 7 is directed into the interior of the activatable hose seal 3.
  • the activatable hose seal 3 is designed such that there are perforations 8 in its hose part, distributed over the entire circumference. These perforations 8 can be open or only open at a specific minimum pressure.
  • the filling devices 6 and the feed channel 7 are distributed around the circumference of the tubular body in positions which, during the post-sealing process, by activating the hose seal 3, allow the molding material to easily escape into the gap between the pipe tip end 1 and the pipe bell 2 in such a way that the molding material comes out of the perforations 8 emerges, connects to the surrounding ground and forms an open or closed permanently elastic ring 9 in front of the gap.
  • the leakage of the mechanical seal 4 is resealed using suitable devices from the inside of the pipe by closing the socket gap 10.
  • transition joints When connecting the concrete pipe and shaft, transition joints are used, the sealing system of which corresponds to that described above.
  • the shafts themselves can be fully integrated into the monitoring system or can be bridged in terms of posture. With full integration, double sealing systems can also be integrated between the manhole rings to create all-round test rooms.
  • a suitable grouting material is used for the pipe connection.
  • These are commercially available, mostly organic or inorganic mixtures of mostly two components such as PUR A or B from Bayer, Scotch-Seal from 3M, AC 400 der Geochemical Corporation, Addiment and others.
  • the grouting material passes through the filling device 6 and the feed channel 7 to the activatable hose seal 3 and via the perforations 8 distributed around the circumference into the surrounding building ground, where it forms a sealing, water-impermeable layer, which seals the leakage point against groundwater and stratified water as well as against all types of waste water permanently closed.
  • the voids present in the ground due to positional deviations in the area of the pipe connection are filled and solidified even with water-saturated soil material.
  • the resulting composite material from the grouting material and the surrounding soil remains in a permanently elastic state. Shear forces acting on the tubular body in the form of bedding stresses with a minimum compressive strength of 0.1 N / mm 2 can be absorbed and contribute to a residual stabilization of the surrounding ground.
  • the chemical and physical properties of the grouting material permit repeated re-sealing by activating the hose seal 3 in the event of leakage again.
  • the grouting material reaches the filling device 6 in the non-accessible area, for example, via special sewer robots and in the accessible area by activating the hose seal 3 on site.
  • Another embodiment of the invention relates to the device and method for permanent or periodic pneumatic posture Leakage control and leak detection both along the pipe body as well as in the area of pipe connections and fittings without having to go through the channel with a TV camera and sleeve testing devices.
  • the tightness is checked by means of an air pressure test based on EN DIN 1610.
  • the tightness control and the leak detection can be carried out separately as monitoring of the pipe connections and as pipe body monitoring or as a combined monitoring system.
  • the pipe connections are monitored via a circumferential test chamber 5 which is formed by the activatable hose seal 3 and the non-activatable mechanical seal 4.
  • one or more corrosion-resistant test lines 11 are integrated in the pipe wall, at least in the 6 and 12 o'clock position of the pipe circumference, which open into the circumferential test room 5 and thus form a closed system in terms of attitude.
  • the entire test room between two shafts consisting of test lines 11 and circumferential test rooms 5, is pressurized to a pressure that is at least 1 bar above the pressure of the fresh or waste water flowing through the pipe ,
  • a leakage in the area of the pipe connections can be determined if the permissible pressure drop is known. If a leak has been determined, the area in which there is a leaky pipe connection can be narrowed using a pressure gradient method and then shut off and filled with water or waste water.
  • the entire test room is pressurized to at least 1 bar.
  • the test medium is preferably air or a special gaseous medium, but can also be water.
  • a controllable hydrophone can be used for fine location in the blocked and filled channel, which precisely determines the location of the greatest noise.
  • a leak can also be located from the surface of the earth or in the non-filled channel using acoustic location methods or, if special gases are used as the test medium, by means of measuring methods of radiometry and conventional methods of tightness control on gas lines. A leak in the area of the pipe connections is then sealed using the method described above.
  • test channels 12 are integrated in the wall of the concrete pipe on the makeshift reinforcement by means of special spacers, the number of which represents a function of the pipe body surface to be monitored and is influenced by the pipe statics.
  • the inside diameter of the test channels should be at least 5 mm.
  • These test channels can be spirally wound or arranged straight along the tube body and open into a ring line 13 running around the tube tip end 1.
  • a connecting channel 14 opens into the circumferential ring line 13 and leads to the coupling point 15 at the pipe tip end 1, preferably in the 12 o'clock position.
  • test channels 12 can open into a further circumferential ring line 16, from which a connecting line 17, preferably also in the 12 o'clock position, leads to a coupling device 18.
  • the connection of the pipe body monitoring from pipe to pipe takes place via the coupling line 19.
  • the coupling line 19 must be resistant to all influences of the surrounding earth and, above all, have sufficient mechanical protection.
  • leaks in the tubular body can also be caused by Detection of the pressure loss in the entire test room with knowledge of the permissible pressure drop can be determined. For fine location can blocked and filled channel in turn a controllable hydrophone be used, which is the place of greatest noise determined exactly.
  • a leakage in the pipe body can be determined by keeping the pressure loss across the entire test room, if the permissible pressure drop is known. If a leak was determined, the pressure gradient method, which is described in DE-A-4 431 367 (published on February 29, 1996), is used for monitoring the pipe connection in the same way as for the rough location. By means of the pressure gradient method, the area in which a leak is located is narrowed and then this area is closed off and filled with water or waste water. As with the monitoring of the pipe connections, the entire test room is pressurized with at least 1 bar.
  • the test medium is preferably air, but can also be water or a special gaseous medium.
  • a controllable hydrophone can be used for fine location in the blocked and filled channel, which precisely determines the location of the greatest noise.
  • a leak can also be located from the surface of the earth or in the non-filled channel by means of acoustic location methods or, if special gases are used as the test medium, by means of measuring methods of radiometry and the usual leakage control methods on gas lines.
  • the leakage in the area of the pipe body is sealed using known methods of repairing leaks for the accessible and non-accessible sewer area.
  • Figure 3 shows a combined monitoring system according to the invention, which combines the properties of the socket monitoring and the pipe body monitoring to form a uniform monitoring system.
  • test channels 11 are integrated in the wall of the concrete pipe on the makeshift reinforcement by means of special spacers, which can also be spirally wound or arranged straight along the pipe body.
  • These test channels open into the pipe tip 1 and pipe bell 2 either via the circumferential ring lines 20 and 22 into the circumferential test chamber, formed by the activatable hose seal 3 and the non-activatable mechanical seal 4, or are each led directly into the circumferential test chamber 5.
  • a plurality of connecting channels 21 and 23 lead to the circumferential test space 5.
  • the entire test room consisting of test channels 11, is pressurized with a pressure of at least 0.2 bar via the surrounding test rooms.
  • the circumferential ring lines 20 and 22 and the connecting lines 21 and 23 are added.
  • the shafts can be fully integrated or bridged.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Claims (19)

  1. Raccord de tuyaux d'une canalisation d'eaux usées posée dans le sol, constituée d'un tuyau de béton, de grés ou de fonte, présentant une extrémité de tuyau rétrécie en pointe (1) et un évasement de tuyau en manchon (2), le raccord comportant une chambre de test (5) périphérique entre une garniture d'étanchéité à anneau glissant (4) et un joint d'étanchéité à vessie (3) pouvant être activé, caractérisé en ce qu'un matériau d'injection sous pression peut s'échapper dans le sol cnvironnant, à partir du joint d'étanchéité à vessie (3) pouvant être activé, pour une ré-étanchéification en cas de fuite dans la région du raccord de tuyaux.
  2. Raccord de tuyaux selon la revendication 1, caractérisé en ce que la chambre de test (5) est raccordée à une conduite de test (11).
  3. Raccord de tuyaux selon la revendication 1 ou 2, caractérisé en ce que le joint d'étanchéité à vessie (3) présente des perforations (8) à sa périphérie.
  4. Raccord de tuyaux selon l'une des revendications 1 à 3, caractérisé en ce que le joint d'étanchéité à vessie (3) est raccordé à un dispositif de remplissage (6) par l'intermédiaire d'un canal d'alimentation (7).
  5. Raccord de tuyaux selon l'une des revendications 1 à 4, caractérisé en ce que le joint d'étanchéité à vessie (3) et/ou la garniture d'étanchéité à anneau glissant (4) sont du type auto-étanchéifiant.
  6. Raccord de tuyaux selon l'une des revendications 1 à 5, caractérisé par des canaux de test (12) disposés dans la paroi.
  7. Raccord de tuyaux selon la revendication 6, caractérisé en ce que les canaux de test (12) sont disposés enroulés en spirale ou de manière rectiligne, le long du corps du tuyau.
  8. Raccord de tuyaux selon la revendication 6 ou 7, caractérisé en ce que dans l'extrémité de tuyau rétrécie en pointe (1) est disposée une conduite annulaire (13) reliée à un canal de test (12).
  9. Raccord de tuyaux selon l'une des revendications 6 à 8, caractérisé en ce que dans l'évasement de tuyau en manchon (2) est disposée une conduite annulaire (16) reliée à un canal de test (17).
  10. Raccord de tuyaux selon l'une des revendications 6 à 9, caractérisé en ce que pour raccorder les canaux de test (12) et (17), sont prévus des dispositifs de couplage (15) et (18) et une conduite de couplage (19).
  11. Procédé de contrôle de l'étanchéité et de réalisation de l'étanchéité du raccord de tuyaux selon la revendication 1, selon lequel on alimente la chambre de test (5) périphérique, par l'intennédiaire d'une conduite de test (11), avec une pression d'au moins 0,2 bar, et on détecte et localise un défaut d'étanchéité par mesure de la perte de pression, suite à quoi on active le joint d'étanchéité à vessie (3).
  12. Procédé selon la revendication 11, caractérisé en ce que le joint d'étanchéité à vessie (3) est activé par introduction d'un matériau d'injection sous pression pouvant être injecté et se solidifiant en restant élastique de manière permanente.
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que le matériau d'injection sous pression, lors de l'activation du joint d'étanchéité à vessie (3), peut s'échapper par des perforations (8) qui sont réparties le long de la périphérie.
  14. Procédé selon l'une des revendications 11 à 13, caractérisé en ce que le matériau d'injection sous pression du joint d'étanchéité à vessie (3) est introduit dans celui-ci par l'intermédiaire d'un canal d'alimentation (7) et d'un dispositif de remplissage (6).
  15. Procédé selon l'une des revendications 11 à 14, caractérisé en ce que le joint d'étanchéité extérieur est constitué par le joint d'étanchéité à vessie (3) pouvant être activé, et le joint d'étanchéité intérieur par une garniture d'étanchéité à anneau glissant, de sorte que par échappement dans le sol environnant du matériau d'injection sous pression par les perforations (8), il est possible de former devant l'intcrsticc un anneau (9) à élasticité permanente.
  16. Procédé selon l'une des revendications 11 à 15, caractérisé en ce que l'alimentation en pression pour lc repérage et la localisation du ou des défaut(s) d'étanchéité, se fait de manière permanente ou périodique.
  17. Procédé selon l'une des revendications 11 à 16, caractérisé en ce que la localisation du ou dcs défaut(s) d'étanchéité est effectuée en deux étapes, à savoir une localisation grossière et une localisation fine.
  18. Procédé selon l'une des revendications 11 à 17, caractérisé en ce que pour la surveillance du corps de tuyau, on alimente avec une pression d'au moins 0.2 bar des canaux de test (11 ; 12) disposés dans la paroi du tuyau de béton, une conduite annulaire (13 ; 20) reliée à ceux-ci, située dans l'extrémité de tuyau rétrécie en pointe (1), et une conduite annulaire (16 ; 22) située dans l'évasement de tuyau en manchon (2), et l'on détecte, localise et rend étanchc un défaut d'étanchéité, par mesure de la perte de pression.
  19. Procédé selon la revendication 18, caractérisé en ce que le contrôle de l'étanchéité et la localisation des fuites sont effectués séparément, sous forme d'une surveillance du raccord de tuyaux et sous forme d'une surveillance du corps de tuyau, ou sous forme d'un système de surveillance combiné.
EP96944070A 1996-01-18 1996-12-24 Tuyau en beton, en gres-cerame ou en fonte Expired - Lifetime EP0870145B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19601652 1996-01-18
DE19601652A DE19601652A1 (de) 1996-01-18 1996-01-18 Beton-, Steinzeug- oder Gußrohr
PCT/EP1996/005841 WO1997026478A1 (fr) 1996-01-18 1996-12-24 Tuyau en beton, en gres-cerame ou en fonte

Publications (2)

Publication Number Publication Date
EP0870145A1 EP0870145A1 (fr) 1998-10-14
EP0870145B1 true EP0870145B1 (fr) 2002-03-27

Family

ID=7783060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96944070A Expired - Lifetime EP0870145B1 (fr) 1996-01-18 1996-12-24 Tuyau en beton, en gres-cerame ou en fonte

Country Status (5)

Country Link
EP (1) EP0870145B1 (fr)
AT (1) ATE215195T1 (fr)
AU (1) AU1379197A (fr)
DE (2) DE19601652A1 (fr)
WO (1) WO1997026478A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29712235U1 (de) * 1997-07-11 1998-11-12 Krestel Karl Heinz Dipl Ing Dichtung mit Hohlräumen
DE19823328C1 (de) * 1998-05-26 1999-09-23 Albrecht Strobel Kanalisationsanlage mit permanenter Dichtigkeitskontrolle der Trennfuge
DE20007478U1 (de) * 2000-04-25 2001-10-11 Kortmann Karl Bauteil für ein Kanalisationsbauwerk o.dgl.
EP1283968A1 (fr) * 2000-05-24 2003-02-19 RG Rohrgruppe GmbH & Co. KG Systeme d'etancheite pour tubes-guides
WO2002023070A1 (fr) * 2000-09-13 2002-03-21 Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. Systeme de joint
DE102004025135B4 (de) * 2004-05-17 2006-04-20 Pt-Poly-Tec Gmbh Vertrieb Und Herstellung Von Dichtsystemen Verfahren und Anordnung zur Leckagevorwarnung und Bauteilpositionierungsanzeige bei Muffenverbindungen
DE202007016602U1 (de) * 2007-11-28 2009-04-02 Gebr. Fasel Betonwerk Gmbh Kanalsystem mit Prüfvorrichtung
DE202008006134U1 (de) * 2008-05-05 2009-09-17 Gebr. Fasel Betonwerk Gmbh Kanalsystem mit Prüfvorrichtung
FR2971829B1 (fr) * 2011-02-18 2014-01-03 Technip France Conduite tubulaire flexible pour le transport d'un fluide petrolier tel qu'un fluide polyphasique ou un gaz.
GB2516574A (en) * 2012-03-27 2015-01-28 Aquaspira Ltd Pipe joint and method of sealing/testing
GB201205343D0 (en) * 2012-03-27 2012-05-09 Aquaspira Ltd Pipe joint and method of sealing/testing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404837A1 (fr) * 1977-09-28 1979-04-27 Petroles Cie Francaise Dispositif de controle de rupture de canalisations flexibles immergees ou flottantes
JPS60184794A (ja) * 1984-03-02 1985-09-20 動力炉・核燃料開発事業団 遠隔着脱用継手
DE4236368C2 (de) * 1992-10-28 1997-07-17 Thomas Dipl Ing Lammering Gleitringdichtung mit integrierter Verpreßeinrichtung
DE4412956A1 (de) * 1994-04-17 1995-10-19 Sander Karl Heinz Gmbh & Co Kg Muffenspiegeldichtung

Also Published As

Publication number Publication date
AU1379197A (en) 1997-08-11
DE19601652A1 (de) 1997-07-24
DE59608975D1 (de) 2002-05-02
EP0870145A1 (fr) 1998-10-14
ATE215195T1 (de) 2002-04-15
WO1997026478A1 (fr) 1997-07-24

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